- The name of the popular search engine 'Google' came from a misspelling of the word 'googol', which is a very large number (the number one followed by one hundred zeros to be exact)..
- Babylonians measured the circumference of a circle as approximately 3 times the diameter, which is fairly close to today's measurement which uses the value of Pi (around 3.14)..
- Dolphin's can detect underwater sounds from 24 km (15 miles) away.
- Warthogs live for 15 years.
- Bats are the only mammals that fly.
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